Sen, Ranjan and Paul, Mukul Chandra and Bhadra, Shyamal Kumar and Dasgupta, Kamal and Bandyopadhyay, Tarun Kumar (1999) Effects of minor additives on the radiation response behaviour of high silica glass single mode fibres. In: Selected Papers From Photonics India '98 , Dec 14-18, 1998 , New Delhi, India .

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Abstract

Using modified chemical vapour deposition ( MCVD ) process and the solution doping technique germania doped single mode fibres with additives of Ce, Pb, Al, Y, Er and Nd in concentration of 1000-2000 ppm either singly or in combination were fabricated in long lengths. The fibres were exposed to gamma radiation from Co-60 source at a dose rate of 300-400 rad/min for a total cumulative dose of 8-10 kilo rads at ambient temperature with on-line recording of the induced loss at 1300nm. It was observed that the presence of minor quantities of dopants considerably influences the loss characteristics of the fibres recording highest radiation sensitivity in Nd doped ones while the codoped fibres with Al+Y, Al+Pb and Al+Er have close range of sensitivity around 0.01 dB/Km.Rad.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	International Conference on Fiber Optics and Photonics (PHOTONICS-98), Volume: 3666; NEW DELHI, INDIA, DEC 14-18, 1998; DOI: 10.1117/12.347979
Uncontrolled Keywords:	Optical fibre; Single mode; MCVD; Preform; Solution doping; gamma irradiation; radiation sensitivity; Radiation damage
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	21 Jun 2012 06:40
Last Modified:	14 Nov 2013 09:04
URI:	http://cgcri.csircentral.net/id/eprint/1533

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